Newborn Sleep by Week: What Is Normal in the First 12 Weeks?

It is 3:12 in the morning, the house is finally quiet, and you are standing over the bassinet wondering whether your baby is sleeping too much, too little, or exactly the way a newborn is supposed to. If that sounds familiar, you are in very good company, because newborn sleep is something nearly every new parent wonders about.

The good news is that newborn sleep follows a fairly predictable path, even though it rarely feels predictable at 3 a.m. Below, we walk through what sleep usually looks like week by week, what is normal, how to keep your baby safe, and how you can protect your own rest along the way.

How much should a newborn sleep in the first week?

Most newborns sleep somewhere between 14 and 17 hours in a 24-hour day, and some sleep even more, according to the National Sleep Foundation. That sleep comes in short pieces, though, usually one to three hours at a time, because your baby's tiny stomach needs to be refilled around the clock.

In the first days after birth, many babies are especially sleepy as they recover from the work of being born. Your pediatrician may ask you to wake your baby for feeds until they are back to their birth weight, so follow that guidance closely. Feeding often, which for most newborns means 8 to 12 times in 24 hours, matters more right now than any kind of sleep pattern.

Why does my newborn sleep all day and stay awake all night?

Between about weeks 2 and 4, many parents notice that their baby seems to have days and nights mixed up. This happens because babies are not born with a working internal clock. In the womb, they were rocked to sleep while you were moving during the day and they often became active when you lay down at night, so that rhythm can carry over for a little while.

You can gently help your baby learn the difference between day and night. During the day, open the curtains, let natural light into the room, and keep normal household sounds going during naps. At night, keep the lights low, keep feeds and diaper changes calm and quiet, and save playtime for the morning. These small cues add up over time.

When do newborns start sleeping longer at night?

Somewhere around weeks 5 to 8, many babies begin to show the first signs of a day and night rhythm. Researchers who tracked infant sleep have found that circadian patterns tend to emerge around six to eight weeks after birth, and that the rhythm continues to mature through about three to four months.

In real life, this often looks like one slightly longer stretch of sleep at night, perhaps three or four hours, and a baby who stays awake and alert for longer during the day. This is also a common time for evening fussiness and cluster feeding, so if your baby wants to eat every hour between 6 and 10 p.m., that is usually normal and often comes right before a longer sleep.

Every baby is different, and babies who were born early often follow their adjusted age rather than their birthday, so try not to compare your baby's nights with a friend's baby or a chart online.

What does baby sleep look like at 2 to 3 months?

By weeks 9 to 12, many babies sleep about 14 to 16 hours a day, with a longer stretch at night and three to five naps during the day. You may start to notice your baby getting drowsy at similar times each day, which is a wonderful moment to begin a simple, soothing bedtime routine, such as a bath, a feed, a song, and lights down.

This stage also brings a lot of joy, because your baby is more awake and more social during the day. If you are wondering about those first real smiles, they often show up around six to eight weeks, which can make those night wakings feel a little more worth it.

Whenever the clocks change, sleep can shift for a few days, and our guide on adjusting your baby's sleep after daylight saving time ends walks you through it step by step.

Where should my newborn sleep safely?

The American Academy of Pediatrics recommends that babies sleep on their backs, on a firm and flat surface such as a crib or bassinet mattress, with nothing else in the sleep space, which means no pillows, bumpers, blankets, or stuffed animals. The AAP also recommends that babies sleep in their parents' room, on their own separate surface, ideally for at least the first six months, because this is when the risk of sudden infant death syndrome is highest.

We know that exhausted parents sometimes fall asleep while feeding, so it helps to plan ahead. If you think you might doze off, feed your baby in your bed rather than on a couch or armchair, keep pillows and blankets away from your baby, and move your baby back to their own sleep space as soon as you wake.

How can I get more sleep with a newborn?

Here is the part that often gets left out of baby sleep advice: your sleep matters too. At MILK, we care for the whole mother, not only the baby, and rest is one of the foundations of recovery after birth. Sleep loss affects your mood, your healing, and even your milk supply, so protecting your rest is not a luxury.

A few things that genuinely help:

• Split the night. If you have a partner or family member at home, take turns covering a longer stretch so that each of you gets at least one block of four or five hours.
• Sleep when your body asks for it. That might be a morning nap after the early feed rather than doing the dishes.
• Keep water and a snack by your feeding spot. Night feeds are thirsty work, especially when you are breastfeeding.
• Let people help. Accepting meals, laundry help, or an extra set of hands is part of healing, and our article on why community support improves health outcomes explains why it makes such a difference.

This is exactly why so many families bring in overnight newborn care. A trained newborn care specialist or postpartum doula cares for your baby through the night, brings your baby to you for feeds if you are nursing, and lets you wake up rested enough to enjoy your days. If you are not sure what a doula does, our guide on birth and postpartum doula care is a lovely place to start.

And when you are ready for real, uninterrupted rest, The Retreat at MILK Maternity was created for exactly that, a place where you can recover, sleep, and be cared for while your baby is cared for nearby.

When should I call the pediatrician about my baby's sleep?

Most newborn sleep worries turn out to be completely normal, but it is always okay to call your pediatrician. Reach out right away if your baby is very hard to wake for feeds, has fewer wet diapers than expected, seems unusually floppy, breathes in a way that worries you, or has a fever of 100.4°F or higher in the first three months.

It is also worth calling if you are struggling yourself. If you are feeling hopeless, anxious, or unable to sleep even when your baby is sleeping, you can call or text the Postpartum Support International helpline at 1-800-944-4773, and in a crisis you can call or text 988 at any time.

You do not have to do the nights alone

Newborn sleep is a season, and while it can feel endless in the middle of it, it really does change week by week. With a little knowledge, a safe sleep space, and support for you as well as your baby, those nights become much more manageable.

If you are in Houston, Austin, or Dallas and would love support with nights, recovery, or anything in between, contact the MILK team or send Lavi a text at (713) 384-6381. We would love to help you find the right care for your family.

Sources

• National Sleep Foundation, recommended sleep durations for newborns and infants
• American Academy of Pediatrics, safe sleep recommendations (2022 policy statement)
• Studies on the development of infant circadian rhythms, which have found day and night sleep patterns first emerging around six to eight weeks after birth in full-term babies
• Centers for Disease Control and Prevention, developmental milestones at 2 months